Need help with using mesh with newton physics...

AppTitle "Sample #21 of Newton Wrapper. Water."

Global body
Global mesh

Graphics3D 600,600,32,2

Include "newton.bb"

cam = CreateCamera()
CameraClsColor cam,25,30,70
PositionEntity cam,0,10,-30
light= CreateLight()
RotateEntity light,20,50,0

plane = CreatePlane()
celltex = LoadTexture("Cell.bmp")
EntityColor plane,50,200,255
EntityAlpha plane,.5
EntityTexture plane,celltex
ScaleTexture celltex,30,30
;					-- create physic world
phWorldCreate(0,"your license key") ;no rigit plane

;play it!
While Not(KeyHit(1))

	;create new primitive
	primit = Rand(1,50)
	If primit <5
		dx# = Rnd(.5,3):dy# = Rnd(.5,3):dz# = Rnd(.5,3);size
		dx = 1:dy=1:dz=1
		mass# = 10;Rnd(.1,.2)
		
		;Create corresponded primitive
		Select primit
			Case 1;cube
				body = phBodyCreateBox(dx,dy,dz,mass)
				mesh = CreateCube()
				ScaleEntity mesh,dx*.5,dy*.5,dz*.5
			Case 2;ellipsoid
				body = phBodyCreateSphere(dx,dy,dz,mass)
				mesh = CreateSphere()
				ScaleEntity mesh,dx,dy,dz
			Case 3;cylinder
				body = phBodyCreateCyl(dx,dy,mass)
				mesh = CreateCylinder()
				ScaleEntity mesh,dx,dy*.5,dx
			Case 4;cone
				body = phBodyCreateCone(dx,dy*2,mass)
				mesh = CreateCone(20)
				ScaleEntity mesh,dx,dy,dx
		End Select

		NewObj.phx = New phx
		NewObj\mesh = mesh
		NewObj\body = body
		
		UpdatePhysics(body)
		EntityColor mesh,Rnd(0,255),Rnd(0,255),Rnd(0,255)

	EndIf
	
	WorldStep(0.05)
	RenderWorld
	Flip
Wend

Function UpdatePhysics(body)
		;set random position, velocity and rotation
		phBodySetPos(body,Rnd(-10,10),Rnd(3,7),Rnd(1,1))
		phBodySetVel(body,Rnd(-2,2),Rnd(-12,2),Rnd(-2,2))
		phBodySetRot(body,Rnd(-180,180),Rnd(-180,180),Rnd(-180,180))
		;  !!!!!!!!!!! Set Water plane for each body
		phBodySetWater(body, 0,0,0, 0,1,0, 15, 0.3,0.4)
End Function

;~IDEal Editor Parameters:
;~C#Blitz3D194